Electrolyte solutions are solutions that contain ions, which are atoms or molecules that have lost or gained electrons. Electrolytes can be either acids, bases, or salts. Some examples of electrolyte solutions include:

- Sodium chloride (NaCl) in water

- Potassium hydroxide (KOH) in water

- Hydrochloric acid (HCl) in water

- Sulfuric acid (H2SO4) in water